Tannin-Based Hybrid Materials and Their Applications: A Review.

Ann-Kathrin Koopmann, Christian Schuster, Jorge Torres-Rodríguez, Stefan Kain, Heidi Pertl-Obermeyer, Alexander Petutschnigg, Nicola Hüsing

Molecules (Basel, Switzerland) 2020 Oct 23

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Tannins are eco-friendly, bio-sourced, natural, and highly reactive polyphenols. In the past decades, the understanding of their versatile properties has grown substantially alongside a continuously broadening of the tannins' application scope. In particular, recently, tannins have been increasingly investigated for their interaction with other species in order to obtain tannin-based hybrid systems that feature advanced and/or novel properties. Furthermore, in virtue of the tannins' chemistry and their high reactivity, they either physicochemically or physically interact with a wide variety of different compounds, including metals and ceramics, as well as a number of organic species. Such hybrid or hybrid-like systems allow the preparation of various advanced nanomaterials, featuring improved performances compared to the current ones. Consequently, these diverse-shaped materials have potential use in wastewater treatment or catalysis, as well as in some novel fields such as UV-shielding, functional food packaging, and biomedicine. Since these kinds of tannin-based hybrids represent an emerging field, thus far no comprehensive overview concerning their potential as functional chemical building blocks is available. Hence, this review aims to provide a structured summary of the current state of research regarding tannin-based hybrids, detailed findings on the chemical mechanisms as well as their fields of application.

Citation

Ann-Kathrin Koopmann, Christian Schuster, Jorge Torres-Rodríguez, Stefan Kain, Heidi Pertl-Obermeyer, Alexander Petutschnigg, Nicola Hüsing. Tannin-Based Hybrid Materials and Their Applications: A Review. Molecules (Basel, Switzerland). 2020 Oct 23;25(21)